Is use of a lidoderm patch safe on facial skin, as in a sore jaw from absessed tooth?

I used the patch on my face for a sore jaw due to a cap being placed on the last tooth on the bottom jaw. It worked better and longer than prescription Ibuprofen and Percocet. I had complete relief for 6-7 hours. I believe it may have lasted the whole 12 hours had the adhesive held out. No ill side effects were experienced.

U would do better of using a cold pack.i wouldnt trust it & besides its not going to work.i wouldnt put it on my face i tell u.read the instructions.thats to close to thde mouth for me it says wash your hands really good after placing it on your desired area so the face, nawwww.

Don't use around the eyes or mouth area, but other then that it should be okay,

Yes, there is no problem using the patch on your face. However it may not be terribly effective. Have you tried anti inflammatory painkillers such as Ibuprofen?
I assume you are seeing a dentist and the infection is being treated. If not you should do so. If the pain is particular severe your dentist will be able to prescribe a strong pain killer such as Tramadol.
https://www.drugs.com/cg/dental-abscess.html